Macomb Community College says additional security measures with enhanced police presence will be implemented Wednesday at its Center Campus in Clinton Township in response to a "dated, non-specific threat of violence" written in a men's bathroom at the R Building.
Evidence of that was a campus sweep by specially trained dogs just before 5 a.m.
The college remains open for classes while there is no indication that the threat is credible.
"Part of the threat included the number 4-24, 4-24," said Casandra Ulbrich, of MCC.
Macomb College Police have been investigating the threat since finding out about it on April 17. That was two days after the bombings in Boston, but there is no connection.
"Well there's certainly no indication at this point that this is in any way related to the tragedy that happened in Boston," said Ulbrich. "However, I can tell you the measures we're taking we would take regardless of whether our nation had gone through this or not. At the end of the day our primary focus is the safety and well being of this campus community."
Students, faculty and staff have been made aware of the potential threat and are reminded to report any unusual or suspicious activity to police.
"I was actually surprised because I've been going here a couple years and we've never had anything like this happen before so I'm a little shocked," said student Victoria Roti.